Convert Back to OLE Variant

[LabBEAN]

Example VI attached.

I aquire an image from a fingerprint reader, extract the template (digital way of uniquely identifying people), and save the template to disk.  Later, I acquire a new image, extract the template, and use the appropriate ActiveX method to compare the template against the stored version.  The template is OLE Variant, which cannot be stored to binary file.  If I store the Variant as an array of U8's instead, I am able to retrieve the U8's from the file, and convert to LabVIEW Variant.  The ActiveX method compares correctly, but sluggishly.  Any way to convert back to OLE Variant?

Thank you,

Jason

[MikeS81]

Hi LabBEAN,

works the compare method better if you directly connect the Varaint data (before saving it)? Did you compare the data? i think it could be a way to check if the reading data equals the written one.

Mike

[LabBEAN]

I'd like to focus on saving and retrieving OLE Variant data.  The methods used to compare fingerprints (i.e. IdentifyPrepare and Identify in my example) work properly and rely on other settings (threshold and rotation tolerance), so I'd rather not architect my own.  (Thank you for your comment, Mike).

Anyone ever successfully "type casted" back to OLE Variant?

Thanks!

Jason